GLOBAL WARRANTY & MULTI-PURPOSE: 45 days money-back guarantee and 24 months warranty by ARAMA. Great ideal for online courses, Skype chat, call center, Webinars Presentations, Office, Business, Rosetta Stone, Dragon Speaking, Conference Calls and more. EASY TO USE: Plug in and play, no installation needed. Simple inline control of the wired headset, easy to adjust the volume up/down, mute on/off the microphone of speaker. The headset is durable and foldable, brings convenience to carry in daily life. COMFORTABLE DESIGN: Super lightweight computer headset with adjustable headband to fit for different head sizes. The 270° adjustable microphone can provide you the most comfortable positioning. Soft and breathable ear pad ensure everyone could enjoy the optimal wearing comfort, no burden on the ears to wear for long time. NOISE ISOLATING MIC: With DSP technology over USB chip and built-in unidirectional noise cancelling microphone significantly enhances the audio experience, pick up your voice clearly and minimize the interference of external noise, retain your most authentic sound. RICH HIGH-DEFINITION STEREO SOUND: High quality laser-tuned speaker drivers and built-in equalizer can minimize audio distortion. Rich and crystal clear stereo sound, let you detect even the most subtle details for full immersion in music, games and calls.